Germ Line Cells

The iPS cells were coaxed into forming germ line precursor cells which include genetic material that may be passed on to a child. The study appears today in the early online edition of the peer-reviewed journal Stem Cells. "This finding could be important PGCs develop into sperm or eggs. The remaining cells develop as the soma, a term that describes all of the tissues that make up an individual’s body. The germ line is an immortal cell lineage, passed on from generation to generation, and charged solely The germ line is an immortal cell lineage, passed on from generation to generation to thinking about how adult somatic traits impact natural selection and the evolution of new species. What is much less clear is the role of embryological mechanisms Generally, most scientists believe that the supply of these follicles is fixed, however in the past ten years some have proposed that some mammals like mice and humans may have adult germ-line stem cells capable of generating new oocytes. In this study the But most of our 23,000 genes are involved in fundamental processes such as cell division, and do not have any known It could be just decades before it is safe to attempt germ line genetic engineering using recombinant DNA technology. Whether mammals generate new eggs in adulthood using stem cells has been a source of scientific controversy. If true, these "germ-line stem cells" might allow novel treatments for infertility and other diseases. However, new research from Carnegie's Lei .

CHICAGO – The salvage chemotherapy regimen of paclitaxel, ifosfamide, and cisplatin was active in the first-line treatment of intermediate- and poor-risk germ cell tumors in a small multicenter phase II study. Overall, 28 of 41 evaluable patients “Our results go against traditional germ layer theory, which holds that a stem cell can only go on to become cell types in line with the germ layer that stem cell came from. Endothelial cells may arise from both the endoderm and mesoderm.” The Mount The Yamashita lab used stem cells from the testes of the fruit fly Drosophila to study the process of cell division. "The Drosophila germ line stem cell can be identified at a single-cell resolution, so they are an ideal model," Yamashita said. The stem "I would have hoped that there would have been greater emphasis on caution and safety particularly as we are affecting the germ line." Mitochondria are the biological power packs that give energy to nearly every cell of the body. If defective, cells can be .

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